Ship protector



June 9, 1925.

1,541,66 A, RlvELLl SHIP PROTECTOR v Filed Nov. s. 1924 2 sheets-sheet 1[l E E m, DEU u i D U E mm, I| i g D [l E] [l l E l] I|l U U D E l D Si':1Q

Rv BY .NAVENTQR ATTORNEY June 9, 192s. 1,541,661

A. RIVELLI SHIP PROTECTOR Filed Nov. 5. 1924 2 SheetsfSheet 2 INVENTORATTORNEY Patented June 9, 1925.

i UNITED STATES 1,541,661 PATENT kOFFICE.

AUGUSTO RIVELLI, OF BALTIMORE, MARYLAND, ASSIGNOR 0F ONE-HALF TO JAMESD.

ALAIMO, OF I BALTIIVIORE, MARYLANDL SHIP PROTECTOR.

Application filed November 3, 1924. Serial No. 747,642.

To all whom t may concern.'

Be it known that I, AUGUSTO RIVELLI, a citizen of the United States,residing in the city of Baltimore and State of Maryland, have inventednew and useful Improvements in Ship Protectors, of which'the followingis a specification.

This invention relates to protecting de- 'vices for ships, an objectbeing to provide means which may be normally elevated above the waterline of a ship, but which is capable of being quickly moved to a loweredposition so as to be in the path of torpedoes and thus protect the hullof the ship from injury.

Another object of the invention is the provision of novel and eflicientmeans for limiting downward movement of the protector and formaintaining the protector in proper operative position.

With the above and other objects in View, the invention further includesthe following novel features and details of construction, to behereinafter more fully describedy illustrated in the accompanyingdrawings and pointed out in the appended claims.

ln the drawings Figure 1 is an elevation of a ship with the inventionapplied.

Figure 2 is a top plan view of the same with the hull of the ship shownin outline.

Figure 3 is an enlarged fragmentary sectional view showing the protectorin lowered position. l

Figure 4 is a similar view with the protector raised.

Figure 5 is a fragmentary elevation showing the frame carried stopengaging means.

Referring in detail to the drawings wherein like characters of referencedenote corresponding parts, the hull of the ship which is indicated at Hhas positioned upon opposite sides a protector in the form of aV frame10. This frame encloses a suitable metal fabric or net 11 and hasextending longitudinally thereof a centrally located pivot bar 12.

The fra-mes 10 preferably extend the length of the hull H and areconnected with the hull through the medium of spaced arms 13 whichextend outwardly upon opposite sides of the hull. These arms have theirinner ends rigidly secured upon shafts 14 and the latter are mounted inbearings 15 secured to the hull. The outer ends of the arms 13 arepivotally mounted upon the bar 12 and are provided with upwardlyextendmg offset stop shoulders 16. The pivot bars 12 carry shoulderengaging members in the form of loops 17 which extend across the outerends of the arms 13 between the stop shoulders 16 and the frame 10. i

VMountedrupon the vshafts 14 are beveled gears 13an`d these gears areengaged and driven by beveled gears 19 which are mounted upon the outerends of a transversely disposed sha-ft 20. This shaft extends throughthe hull H and is driven from a motor or other suitable source of power21 through the medium of gears 22.

The net may thus be elevated to the position shown in Figure 4 so as tobe above the water line and not interfereV with the progress of theship, or it may be lowered to the position shown in Figure 3. Downwardmovement of the net is limited by means of chains 23 which are securedto the hull H and to the frame 10 as indicated at 24 and 25respectively. In addition to limiting downward movement of the nets thechains 23 serve to hold the loops 17 engaged with the shoulders 16 andprevent pivotal movement of the frames while the nets are in theirlowered position.

rlhe invention is susceptible of various changes in its form,proportions and minor details of construction and the right is hereinreserved to make such changes as properly fall within the scope of theappended claims.

Having described the invention what is claimed is Y 1. The combinationvwith a ship, of a protector comprising a frame located upon each sideof and spaced from the hull of the ship, shafts extending along oppositesides of the hull, arms having their ends rigid with the shafts andtheir outer ends pivotally secured to the frames, means whereby theshafts may be rotated to raise .and lower the arms and raise and lowerthe frames and means for resisting pivotal movement of the frames whenthe latter are in lowered position.

2. The combination with a ship, of a proshafts'may be rotated to raiseand lower the arms and raise and lowe1` the frames, oiset shoulders atthe outer ends of the arms7V means rigidv with the frames and engagingthe shoulders to limit .pivotal movement of the Jframes in one directionwhen the said frames are in lowered position and means connecting theframes and ship to limit downward movement of the frames andL hold thelrigid shoulder engaging means in 'e'ontaet with said Shoulders;

8. Theoombination with a ship, 'of a proteotor oonipri'singan velongatedframe adapte'd to ,extendv longitudinally upon opposite sides of andVspaced from the hull of the ship, a pivot bar extending longitudinallyand Centrally of each of the frames, arms having their outer endspivotally mounted npjon the pivot hars, shafts extending longitudinallyof the hull upon opposite sides of the ship, Said shafts having a rigid;connection with the inner ends of` the arms7 means whereby the shaftsmay be rotated to raise and lower the frames, stop shoulders extendingupward from the outer ends of the arms, loops rigid with the pivot barsand extending across the outer ends of the arms for engagement with thestop shoulders and flexible members having ono 'of their endseoi'ineeted totheupper edges o'l the iframes 'and' 'their 'outer 'endseon- 30 neetedtothe hull' of the Ship testimony whereof I my signature.

AUGUSTO RIVELLL

